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	<title>Document</title>
	<script>
		
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	<h1>JS 变量</h1>
	<hr>

	<script>
		var a = 'awfawfwafd';
		var a = 457;
		var a = 324.432;
		var a = true;
		var a = false;
		var a = new Object();
		var a new Array(55,41568,145614,6146,55);
		var a = null;
		var a = undefined;
		var a function(){
			alert('666');
		}
		//alert(a);
		//document.wite(a);
		a();
		console.log(a);
		console.log(typeof(a);

	</script>
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